Related Clues:

• Highest natural adult male voice
• Sax type
• Viola's range
• Enrico Caruso, for one
• Andrea Bocelli, for one
• Saxophone type
• Operatic voice
• Glee club member
• Certain singer
• Pinkerton in 'Madama Butterfly'
• Member of the choir
• Sax range
• Gigli, e.g.
• Tone
• Opera hero, often